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Finding the Fourth Proportional to 555,921.41, 767,172.20 and 301,272.59

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Solution

The fourth proportional to 555,921.41, 767,172.20 and 301,272.59 is: 415,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,921.41 : 767,172.20 = 301,272.59 : x
  2. Step 2: Convert to fraction form
    555,921.41/767,172.20 = 301,272.59/x
  3. Step 3: Cross multiply
    555,921.41x = 767,172.20 × 301,272.59
  4. Step 4: Simplify right side
    555,921.41x = 231,127,955,670.00
  5. Step 5: Solve for x
    x = 231,127,955,670.00/555,921.41
  6. Step 6: Final answer
    x = 415,756.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.